#include<stdio.h>
int countdigit(int n)
{
    int count = 0;
    while(n>0)
    {
        count++;
        n /= 10;
    }
    return count;
}
int power(int base, int exp)
{
    int result = 1;
    while(exp > 0)
    {
        result = result * base;
        exp--;
    }
    return result;
}
int armstrong(int n)
{
    int digit = countdigit(n);
    int sum = 0, temp = n;
    while(temp > 0)
    {
        int r = temp % 10;
        sum += power(r, digits);
        temp /= 10;
    }
    return(sum == n);
}
int main()
{
    int n;
    scanf("%d", &n);
    if(n < 0)
    {
        printf("Invalid Input");
        return 0;
    }
    if(isarmstrong(n))
    {
        printf("Armstrong");
    }
    else
    {
        printf("Not Armstrong");
    }
    return 0;
}